Developing device

Details Developing device Developing device

1985-04-25

1986-12-30

Grimley, Arthur T.

Photocopying

Including fiber optics

355 3R, 118656, G03G 1500

Patent

active

046325352

ABSTRACT:
A developing device, which develops a latent image on a photoconductive drum by a non-magnetic developing agent, is provided with a charging blade pressed against the surface of a developing roller to form a layer of the charged developing agent on the surface of the developing roller, and a recovery blade pressed against the surface of the developing roller so as to allow collection into a hopper of the developing agent which is attached to the developing roller and which is delivered to the recovery blade without having been used for development. The recovery blade has a slant such that the developing agent delivered from the hopper is guided to the side of the devloping roller. One end of the recovery blade is attached to the hopper, and the other end of the recovery blade is located outside the hopper so as to be in plane contact with the developing roller at the middle portion of the recovery blade.

REFERENCES:
patent: 3232190 (1966-02-01), Willmott et al.
patent: 3866574 (1975-02-01), Hardennrook et al.
patent: 4232628 (1980-11-01), Shelffo
patent: 4528937 (1985-07-01), Kunno et al.

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